Originally Posted by The Great Stonk
after 10000 miles, id have long since replaced my chainrings... their is no point changing cassettes and chains if theyre going to be used on worn chainrings...
the problem is obviously the middle chainring... change it.
Errrr, the middle chainring has about 3000 miles on it. Still I think it is worn out. This is my first crankset with aluminum rings. Guess they don't last very long.